clear
use "$P_Main/Others/DateTime/dates.dta"
gener date = dofc(dtYMD)
gener week = week(date)
gener year = year(date)
gener weekly_date = yw(year,week)
sort y2kW dtYMD 
by y2kW: keep if _n==4
keep y2kW weekly_date week year
keep if year>=2016 & year<2019
save "$P_Data_Processed/week_y2kW_concordance.dta", replace
